SKU: MB3GDMJ5B3 |  Mfg. Part: STC PEX4S553  | UPC: 065030843553  |  0 Reviews  |     Share

Startech STC PEX4S553 .com 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART - Dual-profile Plug-in Ca

Pre Order
Expected availability: 1-2 weeks
Condition: New

$192.92  $260.44
Free Shipping for this Item

Product Overview

StarTech.com 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART

Technical Specifications

General Information
Manufacturer:StarTech.com
Manufacturer Part Number:PEX4S553
Manufacturer Website Address:http://www.startech.com
Brand Name:StarTech.com
Product Name:4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART
Marketing Information:

The PEX4S553 4-Port Native PCI Express RS232 Serial Adapter Card with 16550 UART lets you add 4 RS232 (DB9) serial ports, using a single PCI Express expansion slot.

Based on a native single-chip design, this 4-port serial adapter card allows you to harness the full capability offered by PCI Express (PCIe), while reducing the load applied to the CPU by as much as 48% over conventional bridge-chip serial cards.

The RS232 Serial Adapter Card includes 4 half-height/low-profile brackets, allowing the card to be installed into almost any PC case, regardless of form factor.

Backed by a StarTech.com Lifetime warranty and free lifetime technical support.

More from the Manufacturer


Packaged Quantity:1
Product Type:Serial Adapter

Technical Information
Host Interface:PCI Express x1
Data Transfer Rate:128kB/s
UART Type:
  • 16550
  • 16C450

Platform Supported:PC
Interfaces/Ports
Number of Serial Ports (External):4
Physical Characteristics
Form Factor:Plug-in Card
Card Height:Dual-profile
Height:0.7"
Width:5.1"
Length:4.7"
Weight (Approximate):2.60 oz
Miscellaneous
Package Contents:
  • 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART
  • 1 x Full Profile Bracket With Two DB9 Connectors
  • 4 x Low Profile Bracket
  • 1 x Driver CD
  • 1 x Instruction Manual

Additional Information:
  • Windows® 10 (32/64), 8 / 8.1 (32/64), 7 (32/64), Vista (32/64), XP (32/64)
  • Windows Server® 2012, 2008 R2, 2003
  • Mac OS® 10.10
  • Linux

  • Environmentally Friendly:Yes
    Country of Origin:China
    Warranty
    Limited Warranty:Lifetime

    Product Details

    • Manufacturer:
    • Model Number:
    • UPC:
    • Condition:
    • Weight:
    • Dimensions:
    • Updated:
    • Added:
    • Country of Origin:
    • STARTECH
    • STC PEX4S553
    • 065030843553
    • New
    • 1 lbs
    • 5 X 5 X 5
    • Mar 28, 2026
    • Mar 28, 2026
    • China
    Product Identifiers: Brand: Startech • Part #: STC PEX4S553 • UPC: 065030843553

    Startech STC PEX4S553 .com 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART - Dual-profile Plug-in Ca

    Reviews for Startech STC PEX4S553

    $192.92